The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2012
Filed:
Mar. 12, 2009
Hiroshi Otsuka, Kitakyushu, JP;
Arito Mizobe, Kitakyushu, JP;
Hisatake Okumura, Kitakyushu, JP;
Masahide Yoshida, Kitakyushu, JP;
Koji Kido, Kitakyushu, JP;
Joji Kurisu, Kitakyushu, JP;
Hiroshi Otsuka, Kitakyushu, JP;
Arito Mizobe, Kitakyushu, JP;
Hisatake Okumura, Kitakyushu, JP;
Masahide Yoshida, Kitakyushu, JP;
Koji Kido, Kitakyushu, JP;
Joji Kurisu, Kitakyushu, JP;
Krosaki Harima Corporation, Kitakyushu-shi, JP;
Abstract
An immersion nozzle for continuous casting including a tubular body, the tubular body having at the upper end an inlet from which molten steel is introduced into a passage extending from the inlet downward inside the tubular body, the tubular body having a bottom and being depressed in cross section at least at a lower section, the lower section having two narrow sidewalls and two broad sidewalls, the narrow sidewalls having a pair of opposing first outlets communicating with the passage, the bottom having a pair of second outlets communicating with the passage. The lower section has ridges projecting into the passage respectively from the inner surfaces of the broad sidewalls between the pair of first outlets. The second outlets are arranged symmetrically about the axis of the tubular body such that the axes of the second outlets cross each other within the passage.